Electrical energy creates a field in the stater windings that rotates around the frame. These revolving field poles cut the conductors in the rotor, creating unlike poles that interact with each other to cause this.

This is a pole that extends away from the core toward the stator or extends away from the stator toward the rotor.

In a three-phase motor, there are three stator windings for each pole. The windings are placed in groups of three with each group connected in series or parallel for each phase? ATP & NJATC, Motors 2nd edition, Chapter 4: Three phase motors, PP 76

These are grouped and placed in series for each phase in a three-phase motor.